To share this content with an AI assistant
3D Bohr-model representation of the Hafnium atom (symbol Hf, atomic number Z=72). Electron shell configuration: 2, 8, 18, 32, 10, 2 electrons.
Scroll to activate 3D
Bohr model · educational
Electron configuration
Full1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d² 6s²
Short[Xe] 4f¹⁴ 5d² 6s²
Valence electrons4
KLMNOPQ shells
K2
L8
M18
N32
O10
P2
Electronegativity
Pauling1.3
Allen—
Mulliken (eV)—
Atomic radii
Empirical155 pm
Calculated208 pm
Covalent175 pm
Van der Waals—
Ionic radii (Shannon-Prewitt)
+471 pm
Successive ionisation energies
I₁658.5 kJ/mol
I₂1440 kJ/mol
I₃2250 kJ/mol
I₄3216 kJ/mol
Electron affinity17.2 kJ/mol
Oxidation states
-20+1+2+3+4
Bold states = most common.